Hey Nick, Ussually your right about Shasta/ Whiskeytown...but Whiskeytown is drawn down 15 feet still before they fill it back up for the summer. So that water is shallower and heats up fast when it's warmer out. (like the last 2 weeks which were 80 plus degrees). Shasta is much deeper by about 300 feet in some spots and is still being feed by snow runoff (especially when it warms up with record snowpack). Later in the season they fill whiskeytown up with water from the bottom of Trinity lake and keep it full with that water which is in pipes and very cold. That is why whiskeytown stays colder. Shasta continues to be fed by runoff which is warmed by the 100 degree weather, which heats the water up. I'll check again on Sunday at Shasta and Monday at Whiskeytown when I go out.
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